Store-window.



W. B. W. CHERRY.

STORE WINDOW.

APPLICATION FILED APR. 7, 1909.

Patented Dec. 21. 1909.

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Patented Dec. 21, 1909.

W. E. W. CHERRY.

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APPLICATION FILED APR. 7, 1909.

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STORE WINDOW.

APPLICATION FILED APR. 7, 1909.

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STORE-WINDOW.

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Specification of Letters Patent. Patented Doc, 21, 1909.

Application filed April 7, 1909. Serial No. 488,358.

To all 107mm it may concern:

Be it known that I, lViLLirui E. 1V. CHERRY, a citizen of the UnitedStates, residing at Columbus, in the county of F anklin and State ofOhio, have invented a certain new and useful Improvement inStorelVindows, of which the following is a specitication.

The object of this invention is to provide a store window that shall notbe subject to frosting that is, to the freezing of moisture precipitatedupon the glassand shall at the same time be dust proof.

As I understand it frosting is due to considerable inequality betweenthe temperature of the interior and that of exterior of the window. Ithas heretofore been proposed to keep the interior of a window at thestreet temperature by providing inclosed air spaces at the top, back andbottom of the window, said air spaces communicating with the air of thestreet and providing holes in the floor of the window to at all timesadmit street-air to the interior of the window. That such a constructionis not dustproof is quite apparent. In my invention I propose to use noorifices for admitting street or other air to the interior of the windowafter it is dressed and closed. I do not rely upon the admission to andcirculation of street air in the window to maintain or assist inmaintaining an equilibrium of temperature, but I employ an efficientinsulation of a dust-tight structure and rely on conduction of heat fromor to such a structure to maintain the desired equilibrium oftemperature.

My invention is embodied in the construction herein shown, described andclaimed, the invention not being confined to precisely the forms of theparts shown.

In the accompanying drawings-I igure 1 is an elevation of a store frontas it appears from the street, a portion of the show window at one sideof the doorway being omitted. Fig. 2 is a vertical section of the windowor front on say line :c:0, Fig. 1. Fig. 3 is a horizontal section on sayline g -g Fig. 1.

Like characters of reference in the several views designatecorresponding parts.

The character 5 designates the side wall of the building, and 6, acolumn set into or against said wall. In the form of window shown thereare in each large glass panes 7 and 8 set at angles to each other withtheir meeting edges secured together by any suitable well-known dustproof devices. Set off from the wall 5 so as to leave a vertical airspace is a 'all 9.

10 and 11 designate the vertical pieces of the door frame of theentrance to the store and 12 is the door hung in said frame.

13 and let designate vertical pieces of a frame to receive a verticallysliding door 15 constituting the back wall of the window, and 1G and 17designate vertical pieces of a frame to receive a vertically slidingdoor 18. The panes are secured to the frame piece 13 and wall 9 withdust-tight joints, and the frame piece ill is connected with the inneredge of the wall 9 with a dust tight joint. The sliding door 15 isfitted dust tightly in the frame pieces 13 and let. The frame pieces 16and 17 are set respectively against the door frame and wall 5 andsutliciently in the rear of the door 15 to leave an air space betweenthe two doors, and the door 18 is designed to exclude cold air from thestore room. The spaces between the sliding doors and the walls 5 and 9are shown to communicate. There is an important advantage in setting thewall 9 off from the wall so as to provide the vertical air space betweenthem in that the heat of the wall 5 is not, especially in winter,transmitted to any considerable degree to the show window. Along thefront of the air space between the walls 9 and 5 is secured an angle bar19 having a series of air holes 19 which can be screened, if desired, toprevent the admission of lighted matches &c. into the air spaces. Alongthe space between the frame pieces 10 and 13 is secured another similarangle bar 20 provided with air holes 20 which can also be screened. Itwill therefore be observed that street air has free access to twovertical air spaces, the outer edges of which are provided with theperforated vertical angle bars, and that these vertical air spaceseffectually insulate from the building the vertical i'nclosing walls atthose sides of the show window nearest the heated parts of the building.

In the form of store window shown a transom glass for admitting light tothe store is provided at the front of the building over the window asseen at 21. This transom window can be hinged as seen at 21. A singleangle bar 21 extending entirely across the top of both windows and thedoorway furnishes a strong support for the transom.

Access to the window for the purpose of dressing it can be provided forin any suitable way, but where sliding doors like those designated 15-and 18 are employed it is important that the opening at the upperportion of the air space between them be closed not only to prevent coldair from entering the store room but to preventthe heated air of thestore room from heating the store window. I therefore provide at theupper end of said air space a cover piece 22 having beveled longitudinaledges to fit on a correspondingly beveled seat at the upper edge of theair space between the sliding doors. This cover piece fits at its endsin the grooves in which the door slides and is carried up and down bythe door as it is raised and lowered. Each of the sliding doors can, ifdesired, be provided with counter-balancing weights, cords of which areshown at 23 and 24: respectively Fig. 2.

The root of the show window can be insulated from the heat of the storeby any suitable insulating materialasbestos or mineral wool, forexampleas seen at 25. The joints of the glass panes with the roof aremade dust proof, as is also the lap or bevel joint where the top of thesliding door 15 fits against the inside framing at or near the roof. Thejoint between the ceiling or root of the window with the side wall 9 isalso made dust tight.

The floor 26 ot' the show window is somewhat elevated above the floor ofthe store, as is the usual practice. Its underside is protected fromaccess of heat from the store room by a wash board or wall 27. Thejoints of the glass panes with the floor are made dust tight as is alsothe joint of the floor with the wall 9. I obtain very satisfactoryresults without admitting street air below the floor of the window,although such air can be admitted by making suitable openings in thefront and side bases of the structure. Floors, unless heated from below,are proverbially cold. Where the window 15 rests on the floor it can beprovided with a strip of felt to keep out dust.

It will thus be observed that the store window was thus constructed isthoroughly insulated from the heat of the building and is surrounded onthose sides nearest to and most likely to be heated by jackets ofcirculating street air and at the same time is dust proof at all points.The temperature of the interior of the show window varies with andalways approximates to that of the 7 the interior of the window. By thismeans much or" the injury to or deterioration of valuable goodsexhibited in. show windows by reason of dust and smoke is avoided.

hat I claim is:

1. In combination with a building having a vertical side or partitionwall, 5, an inclosed window of dust-tight construction throughout builtadjacent said side or partition wall, and means for insulating saidwindow from the heat of the building including an inclosed air spacebetween the said window and the side or partition wall, said air spacecommunicating with the atmosphere.

2. In combination with a building having a vertical side or partitionwall, 5, an inclosed window of dust-tight construction throughout builtadjacent said side or partition wall, and means for insulating saidwindow from the heat of the building including an inclosed air spacebetween said window and said side or partition wall said air spacecommunicating with the atmosphere, and an air space at the rear of thewindow, the latter communicating with the first mentioned air space.

3. In combination with a building having a vertical side or partitionwall, 5, an inclosed window of dust-tight construction throughout builtadjacent said side or partition wall, said window including the verticalwall, 9, insulatedly separated from the said side or partition wall.

of the window to or from the air confined in at. A store window of dusttight construction having at its rear a double wall forming an air spaceand lncluding an inner vertically sliding wall or door, means wherebystreet air is admitted to said space combined wlth a closure moved bythe door to close the opening at the upper portion of said an space.

WILLIAM E W. CHERRY.

IVitnesses DAN J. CHERRY, BENJ. FrNoKnL.

